[Bug c++/81852] Feature request: __cpp_threadsafe_static_init

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81852

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Sun Sep 10 09:05:31 2017
New Revision: 251947

URL: https://gcc.gnu.org/viewcvs?rev=251947&root=gcc&view=rev
Log:
PR c++/81852 define feature-test macro for -fthreadsafe-statics

gcc/c-family:

        PR c++/81852
        * c-cppbuiltin.c (c_cpp_builtins): Define __cpp_threadsafe_static_init.

gcc/testsuite:

        PR c++/81852
        * g++.dg/cpp1y/feat-cxx11.C: Check __cpp_threadsafe_static_init.
        * g++.dg/cpp1y/feat-cxx14.C: Likewise.
        * g++.dg/cpp1y/feat-cxx98.C: Likewise.
        * g++.dg/cpp1y/feat-neg.C: Likewise.
        * g++.dg/cpp1z/feat-cxx1z.C: Likewise.

Modified:
    branches/gcc-6-branch/gcc/c-family/ChangeLog
    branches/gcc-6-branch/gcc/c-family/c-cppbuiltin.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog
    branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1y/feat-cxx11.C
    branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1y/feat-cxx14.C
    branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1y/feat-cxx98.C
    branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1y/feat-neg.C
    branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1z/feat-cxx1z.C